skittle, chemistry

Skittles

Skittles

Aim: To separate colours from skittles by using the chromatography.

Definition: Chromatography is a method of separating out materials from a mixture.

Eg. blood, ink, drugs,

Materials

1. Petrie dish.
2. Water.

3. Skittle.

Process:

Step 1: Get the Petrie dish.
Step 2: Put All six skittle in the Petrie dish.
Step 3: Spread the skittles out evenly in the edge of the dish.
Step 4: Put some water to the top of the Petrie dish.

Conclusion: 

I learned in chemistry this week to make a rainbow skittle if putting water on because it was my first time doing it.  It was really the colour of the skittles expand and only stayed by not mixing theme. I learned that chromatography is the method of material that are away.

The case of the Barefoot Burglar.

The case of the Barefoot Burglar

In groups of 3 you are going to need to use your forensic knowledge to solve a crime. You must use the web page: Barefoot Burglar Evidence

1. Determine which of the four suspects is the "Barefooted Burglar"? : Lou Lou
2. What do you think was the motive for this crime? : Four of them.
3. Write the results of your findings and convince a jury of your peers

The Crime

At approximately 7:15 a.m., Friday morning, Mrs. King, the science teacher, thought something was fishy as she walked down the hall and noticed that her door was open. She walked into her classroom and immediately discovered that the small aquarium had been broken and her prized gold fish were gasping in the sink. Beside the broken aquarium were the shattered remains of the pink piggy bank that had been on the shelf above the aquarium. A can of blue paint was spilled on the floor. Footprints of a barefooted burglar led to an open window. Bits of a white powdery substance were found next to the broken, empty, piggy bank. The only other item found was a half-eaten large chunk of chocolate candy.

When the police arrived they immediately began to gather forensic evidence.

Dan the Man Height : 176 cm Alias: The General Dan was wearing a woolen general's uniform with small holes when apprehended in the woods. He claimed to be gnawing on wood for moisture and insects to practice his survival training. His teeth look like a beavers from gnawing. His wife complains that she never has any baking soda due to Dan's compulsion about storing clothes in mothballs. He thinks the baking soda takes away the mothball smell, so he stuffs his pockets with the substance. Also, his wife reports that her giant chocolate kisses continually disappear from the candy cupboard. He blames their dog Patton, an English bull terrier, who patrols the neighborhood. His neighbors report that Dan loves the military. He was very regimented about playing taps on his bugle every day at sunset until an irate neighbor broke his bugle. Dan has been trying to save money for a new one. Peg the Leg Height: 152 cm Alias: Lucky Lady

Peg is a librarian known for hanging horseshoes and four leaf clovers in her library. Employees say she is so superstitious she insisted on carpeting in the library instead of laying tiles so she would not step on the cracks. She wraps construction zone tape around open ladders so no one can walk under them. Cola bottles litter her office, which she drinks with chocolate chunks. Her teeth are chipped from knocking the bottles against them. She is always throwing salt over her shoulder for good luck and keeps a salt shaker in her purse. Her alibi is that she was busy closing open umbrellas the morning of the crime.

Jake the Jock

                                                                         Height 201 cm

                                                     Alias: Armchair Quarterback

                                                                                         

Jake the Jock is known for quoting statistics on every sport from boomerang throwing to sled dogging. His neighbors report that he is the neighborhood pitcher for baseball games. Last year a baseball hit him in the mouth and knocked out his front tooth. This has cramped his eating style of chocolate chunks, candied apples, and corn on the cob. His wife claims that on the morning of the crime Jake was rubbing his hands with cornstarch to keep them dry in preparation for an important baseball game.

• 
  

Lou Lou Height: 160 cm Alias: Sweet Tooth

Lou Lou is so addicted to sugar that she never leaves home without it. She loves to bake sweet things and has an entire pantry full of sugar bins. She claims to have been baking her famous chocolate chunk cookies the morning of the crime (although not a morsel of cookie or chocolate chunk was left when the police arrived.) Lou Lou rarely wears shoes, which often causes her to slip and break things, especially her collection of ceramic pigs. Evidence:

• Fingerprints: Sticky, 'swirl' fingerprints were lifted from the aquarium and piggy bank. 
• Footprints: The painted footprints were measured and were for 26 cm feet. 
• Teeth: The chunk of chocolate candy was collected for examination. It appeared there were teeth imprints.
• White Powder: The white powdery substance by the piggy bank was carefully placed in a plastic bag and taken to the forensic chemist for identification. It had very small grains and when mixed with Iodine it reacted making the colour brown. It did not have a smell.

Name: Dave

                        

Fingerprints: No.

Mouth prints: Has a chipped tooth.
Shoe size: 16
White powder: None found.

Name	Evidence
Dan	Fingerprints: Whorl Mouthprints: Beaver tooth Shoe size: 7 White powder: He stuffs his pockets with substances, His wife complains that she never has any Baking Soda due to Dan's compulsion about storing clothes in mothballs.
Peg	Fingerprints: Loop Mouthprints: Chipped Shoe size: 6.7 White powder: She is always throwing salt over her shoulder for good luck and keeps a Salt shaker in her purse.
Jake	Fingerprints: whorl Mouthprints: Chipped Shoe size:7. White powder: His wife claims that on the morning of the crime Jake was rubbing his hands with Cornstarch to keep them dry in preparation for an important baseball game.
Lou	Fingerprints: Arch Mouthprint: Nothing Shoe size:5.8 White powder: Lou Lou rarely wears shoes, which often causes her to slip and break things, especially her collection of ceramic pigs. White powder: Lou Lou is so addicted to sugar that she never leaves home without it.

Findings: ( what did you find. Summaries what you have written in the table above)
What I got first from the table that everyone had a fingerprint and evidence for white powder. But I did not get a shoe size from any of the suspects probably because they were all barefoot? There were not any mouth prints for Lou Lou but Dan the Man has teeth like a beaver, Peg’s mouth was chipped from too many cola bottles while Jake got his front tooth knocked off during a baseball game.

Verdict: ( who is the burglar and why)

I think that the burglar is Dan the Man because he has a swirl fingerprint,

But I also think that the burglar is Lou Lou for a couple of reasons, so in the crime scene there is broken stuff around and footprints in the spilled paint and Lou Lou does rarely wear shoes which sortive makes her clumsy and she tends to break

stuff.

http://www.cyberbee.com/whodunnit/crimescene.html

The benefits of physical activity education

I promise, that I would do physical every 30 hours 5 times a week is to go play basketball outside my house and do physical activities outside.

1. Running
2. Walk
3. Biking
4. Walking to my friend's house.
5. walking to school.'

Exercise and how they affect our body and mind.

Exercise affects the brain on multiple fronts. It increases heart rate, which pumps more oxygen to the brain. ... A study from Stockholm showed that the antidepressant effect of running was also associated with more cell growth in the hippocampus, an area of the brain responsible for learning and memory.

Health benefits of laughter yoga.

One of the best feelings in the world is the deep-rooted belly laugh. It can bring people together and establish amazing connections. Everything from a slight giggle to a side-splitting guffaw can change the temperature of a room from chilly unfamiliarity to a warm family-like atmosphere.

Filter, Chemistry

Aim: To make a filtration plant using household materials.

Water Filtration Plant

What is filtration?

Filtration is separating solids from liquids by adding a medium through which only the liquid can pass. 

Four types of filters.

1. Oil

2. Air

3. Water

4. kettle

Materials

1. Water Bottle

2. Filter Paper

3. Sand

4. Funnel

5. Scissor 

6. Rock
7. Dirty water

Step 1.Open a new blog post.

Step 2.List 4 types of filters.

Step 3.Collect a water bottle and cut it with scissors to make a funnel.

Step 4. Fold a filter paper to make a cone.
Step 5. collect sand.

Process 

Step 1

Cut the bottle.....

Step 2

Put the top half upside down .......

STEP 3

Add layers of ....

STEP 4

Get 1 cup of dirty water .......

STEP 5

Pour dirty water into ......

Findings

Write a short sentence about the water every 1 minute. 

Include 'How much water has filtered through', 'How fast it is dripping through', and 'How clear the water is'.

Minutes                          1. 33                        2.    62               3.       82             4.    109                   5.133

Drops per minute: 5 second

Water colour: white

Conclusion: I Learn that the dirty water becomes a clean water and it can be drinkable. I Learn if I put a sand on the a filter paper and put rocks into the filter, it can a clean a dirty water. I learn this lesson on chemistry that there is a way to clean a dirty water. In our Filter drops 33 in one minutes, in two minutes drops 62 in three minutes drops 82, then in four minutes drops in 109 and in five minutes drops in 133.

Math

This week on maths I have done a lot of work and improve from my learning on maths. On math, I have been repeating the answer if I can remember what I've learned.